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' 3Sheets--Sheet l. I 0. F. S'LEIGH & H. V. SMITH.

' ROTARY ENGINE.

No. 355,479. Patentd Jan. 4, 1887.

(No Model.)

WITNESS'ES: INVENTOR: 6&3

ATTORNEYS.

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(No Model.)

3 Sheets-Sheet 2.

No. 355479. Patented Jan. 4, 1887. I

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(No Model.) 3 Sheets-Sheet 3.

,0 P. SLEIGH & H. V. $MITH. ROTARY ENGINE.

No. 355,479. Patented Jan. 4, 1887.

WITNESSES I INVENTOR 2 BY i ATTORNEYS.

UNITED STATES PATENT OFFICE.

CHARLES F. SLEIGH AND HARRIE V. SMITH, OF P ARKERSBURG, W. VA.

ROTARY ENGINE.

' SPECIFICATION forming part of Letters Patent Nof 355,479, datedJanuary 4, 1887.

' Application filed August 24, 1886. Serial No. 211,745. No model.)

To all whom it may concern/.-

Be it known that we, CHARLES F. SLEIGH and HARRiE V. SMITH, ofParkersburg, in the county of Wood and State of \Vest Virginia, haveinvented a new and Improved Rotary Engine, of which the following is afull, clear, and exact description.

The object of our invention is to provide a new and improved rotaryengine which is simple and durable in construction, effective inoperation, and is reversible.

Theinvention consists of an elongated piston turning in a cylinder inwhich slidetwo gates operated from a cam; on the piston, of steam inletand outlet ports entering the cylinder through the piston, and of adevice for reversing the engine.

The invention also consists of various parts and details andcombinations of the same, as

will be fully described hereinafter, and then pointed out in the claims.

Reference is to be had'to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of our improvement. Fig. 2 is an endelevation of the same, parts being broken out. Fig. 3 is a sectionalplan view of the same on the line a: w of Fig. 2. Fig. 4 is a sideelevation of the same with the cylinder'head removed, and Fig. 5 is aperspective view of the piston.

The steam-cylinder A is provided with a base, B,secured to a suitableframe or foundation. In the cylinder A operates a piston,G, consistingof the hubs D and D',having their bearings in the cylinder-wall A and inthe cylinder-head A and of side flanges,E and E, united at their upperedges by a partition, F. The side flanges,E and E, fit closely againstthe cylinder-wall and the cylinder-head, respectively and the upper edgeof the partition F fits against the periphery of the cylinder A, and maybe provided with any suitable packing, so as to form a stearn-tightcontact. The

steam-ports G and G, formed in the hubs D and D, connect with the pipesH and Hgprojecting from the hubs D and D,and open inwardly into thecylinder A on each side of the partition F between the said flanges Eand E.

The pipes H andH have their bearings in the standards I, and areconnected at their outer ends by the couplings J with the stationarypipes K and K, which terminate in the throttle-valve L,provided with thesteaminlet pipe L and the exhaust-pipe L",and also having the valveM,provided with the passage-ways M and M, connecting the. pipes L and L-with the pipes K and K, respectively.

In the cylinder A are formed, diagonally opposite each other, guidewaysN and N, in which slide the gates O and 0, respectively, each gate beingprovided with a rod, P, having its bearing in the offset R on thecylinder A, and carrying on its outer end a bent arm, S,on which aremounted the friction-rollers T, operating on theegg-shaped cam U,securedto the outer edge of the hub D of the piston F. On the rod P is coiled aspring, V, resting at its ends between the adjustable nut P, fixed onthe rod P and the arm S.

The operation is as follows: The steam ad: mitted to the inlet-pipes Land K passes into the cylinder A by the inlet-port G on one side of thepartition F, and exerts its pressure against the piston O, as the gate 0prevents the steam from passing to the otherside of the partition F,thereby rotating the piston G in the direction of the arrow to. (SeeFig. 4.) The gates O and. 0 move correspondingly with each rotation ofthe piston O, as the shape.

of the cam U corresponds with the shape of the piston G, and when thepartition F in the piston O has passed the gate 0 the live steam fromthe inlet-port G passes into the cylinder A between thegate O and thepartition F,and

thus compels the piston G to continue its rotation in the direction ofthe arrow a. The dead steam in front of the piston passes into the portG and into the pipe H,and is discharged through the throttle-valve bythe passage-way M and the exhaust-pipe L It will be seen that the gatesO and O- are operated indirectly from the piston O by means of the cam'U, se-

cured to the latter on its outside hub, D, and the shape of the cam Ucorresponds to the shape of the piston C. The engine is reversed byturning the valve M so that the passageway M connects the inlet-pipe Lwith the pipe K, and the passage-way Mconnects' the exhaust-pipe L wlththe pipe K. The steam then enters the cylinder A by the port G on theother side ofthe partition F, and thereby causes the piston to turn inthe inverse direc- IOO tion of the arrow a. The driving-pulleys \V,mounted on the pipes Hand H-,with the piston C,transmit'the rotarymotion of the piston O in any desired manner.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is-

1. Inarotary steam-engine,tl1e combination, with the cylinder, of thepiston having ports connected with a reversible valve and the gatesoperated by a cam applied directly to said piston, substantially as andfor the purpose set forth.

2. Inarotarystea1n-engine,thecombination, with the cylinder A,of thepistons 0, having the ports G and G and provided with the side flanges,E and E,and the partition F, the reversible valve M,conne(:ted with thesaid ports- G and G, the gates O and O,slidii1g in guides formed in thecylinder A, and the cam U,secured to the hub D of the piston O andoperating the said gates O and "O' by means of suitable connections,substantially as shown and described.

3. In a rotary engine,the combination,with the cylinder A, having theguideways N and N, of the piston O,having the ports G and G and providedwith the flanges E and E, and the partition F, the cam U,secured to thesaid piston on the outside of the cylinder A, the friction-rollers T,operating on the said cam and mounted on the arms S, and the gates O andO, sliding in the said guideways N and N and connected with the saidarms S by the rods P, substantially as shown and described.

4. In a rotary steam-engine, the combination, of the cylinder A with thepiston Qhaving the ports G and G and provided with the side flanges,Eand E, and the partition F, the gates O and O,s1iding in the saidcylinder A and operated by a cam U,secured to the hub D of the saidpiston O, substantially as shown and described.

CHARLES F. SLEIGH. HARRIE V. SMITH. NVitnesses:

H. O. VAN W'INKLE,

L. D. SMITEI.

